Improvement in machines for making spotted yarn



v 2 Sheets-Sheet 1. J. AROHIBALD & H. HOL GROIIT. Machine forMa-kingSpotted Yarn. No. 217.193. Patented July 8,1879.

2 Sheets-Sheet 2.

J. ARCHIBALD & H. HOLGROFT. Machine for Making Spotted Yarn. No.217,193. Patented July 8,1879.

NPETERS. FHOTO'LITHOGRAPHEHI WASHXNGTON D C.

UNITED STATES PATENT OFFIGE.

JOHN AROHIBALD, OF PHILADELPHIA, AND HENRY HOLOROFT, OF MEDIA,

ASSIGNORS OF ONE-HALF THEIR RIGHT TO DAVID R. JONES, OF PHILA- DELPHIA,AND OANBY S. SMITH,

IM PROVEMENT IN MACHINES Specification forming part of Letters Patent No217, 193, dated July 8, 1879; application filed January 14, 1878.

To all whom it may concern:

Be it known that we, JOHN AROHIBALD, of the city of Philadelphia andState of Pennsylvania, and HENRY HOLGROFT, of Media, Delaware county,and State of Pennsylvania, have jointly invented a new and usefulImprovement in Machines for Doubling and Spotting Twisted Yarns, whichimprovement is fully set forth in the following specification andaccompanying drawings, in which Figure 1 is a front view of our improvedmachine. Fig. 2 is an end view of the same. Fig. 3 is a view of asection of the patternchain. Fig. 4 is a front view of the flier, tube,and stand. Fig. 5 is a sectional view of the same. Fig. 6 is a view of acorded thread,

' showing the spots and twists.

ferent points, and, when threads of dilferent colors are used, willproduce a lapped thread variegated in appearance.

Our invention consists in the combination, with drawing-off and windingmechanism, of a pattern device for operating friction or other clutches,by which the drawing off and wind ing shall be performed at varyingspeeds, which are controlled by the pattern device, as will behereinafter described.

The construction of our invention is as follows: A representsthe frameof the machine, which may be made of cast-iron; B, the rails, which maybe made of wood or cast-iron. In this frame we put a drum, 0, and shaftD, and on the shaft D we fix a grooved pulley, E, and a looseband-pulley, F, the hub of the latter be: ing constructed so as to formthe ratchet-tooth clutch G. Upon the same shaft is a sliding sleeve, G,in each end of which are formed ratchet-teeth, and that is free to slideon the shaft. A small pin fixed in the shaft D, and

fitted to engage in a slot in the sleeve G, makes the sleeve and shaftrevolve together. The clutch G is formed on a sleeve fitted on the endof shaft D and extending through the frame A, and to it is fixed thespur-wheel H. K is a shaft, to which is fixed two arms, 1111, to theopposite or free ends of which is fixed a guide-wire, which is made, byany suitable mechanism, to traverse the thread while being wound on thespindle M.

The spindle M is fixed to the frame by the bolster N and step 0. On thisspindle is a small grooved pulley, P. It is a flier, fixed to a tube, S,which is supported in the stand T. Fixed to the head of the flier is asmall grooved pulley, and the leg of the flier is pierced with twoholes, one about the center and the other at the end.

ratchetand -flange wheel, W, on the flange the lever Y. This lever isconnected by a rod, a, to the bell-crank lever b, one of the arms ofthis lever being made fork-shaped, so as to fit into a groove in thesleeve or clutch G. The lever spring 0?, and through the action of thisspring and the projections on the pattern-chain the clutches G, G, and Gwill be engaged and disengaged. Upon the stud on which is placed thechain-wheel W is fitted a loose arm, f, to which is connected a pawl, g.The arm f is connected to wheel H by rod h.

On the end of the. shaft of drum 0 is fixed a grooved pulley, p, fromwhich runs a crosssmall pinion wheel, that engages with wheel H that isfast on the sleeve, and so drives the clutch G. (See dotted lines, Fig.2.) The band 1", for driving the spindle M, is run over twocarrier-pulleys, n a. (See Fig.2.) The pattern wheel W is provided witha friction cord or strap, m.

The operation is as follows: The spools X X X are provided with the yarnthat is to be doubled, twisted, and spotted. The yarn from 1 the twospools set on the vertical spindles are carried through the tube S andfastened to the On a stud fastened to frame A is fitted a part of whichis fitted to work a plate-link chain, as shown in Fig. 3. On this chainrests Y is kept down on the chain by the spiral band to pulley l, onwhich latter is fixed a spindle M. The lapping yarn or thread from thespool on the tube S is carried through the center hole in-the leg of theflier R, and then through the hole in the end of the leg, and fastenedto the threads passing through the tube S. Motion is communicated todrum 0, and from it by the band shown in Fig. 2 to the flier R, which,as it revolves, carries the thread from the flier around the centerthread or threads. The pulley p on shaft of drum 0, by the band shown inFig. 2, communicates 'motion to pulley l, which transmits it through thesmall pinion wheel to the spur wheel H, and this, by the connecting-rodh, to the arm f, which operates the pawl g, and at each revolution ofthe wheel H will move the ratchetwheel W one tooth and the pattern-chainone link. i

The leverY in Fig. 2 is shown as resting on one of the links of thechain having the greatest lift. This, through the connecting rod or andbell-crank lever 11, will engage the clutches G and G, and theseclutches will remain engaged until the chain presents a link with ashort lift or a link without lift. The clutches G and G having beenengaged by the pattern chain and connecting mechanism, the shaft D willbe rotated through the wheel H, pulleys l and h, and pinion, and a slowmotion will be communicated thereto, and, by means of the pulley E andband r, a corresponding motion will be communicated to the spindle M,which will slowly draw off the yarn through the tube S, and the threadfrom the flier will be wound around the central thread in form of aspiral or twist. The next revolution of wheel H will move thepattern-chain one link,

and the spring d will draw the lever Y down on the short-lift link ofthe pattern-chain. This will disengage the clutches, and the shaft D andspindle M will stand still and the flier R will continue in motion, andwill lap the winding thread closely, forming on the central thread awell-defined spot.

The next movement of the pattern-chain will cause the lever Y to dropand rest on a plain link of the chain. This will connect the clutches Gand G, and the shaft D will be driven by the band upon the drum 0, andspindle M will be rotated at a much faster speed than when the shaft isdriven by the wheel H, and the coils of the lapping thread will be woundon the central thread farther apart, showing a different twist or spiralfrom that lapped by the slow speed.

The changes in the speeds and stops may be made at each revolution ofthe wheel H, and each or any one of them may be continued as long asdesired simply by arranging the lifts in the chain as shown in Fig. 3.

In place of a chain having raised links a pattern-chain with movablescrews of different lengths may be used, the same as is now used, tocontrol the movements of double shuttlebox motionsin power-looms.

In place of a chain, a wheel having mova-; ble pins, or a ratchet-wheelto which is fixed a flange with raised projections, maybe used ,1 but inthe latter case a wheel or flange will be required for each patterndesired to be pro: duced on the thread. For this reason we pref fer achain with movable links or screws, which may be readily altered to suitboth length and design of pattern desired.

In some cases it maybe desired to fix thetube S in the stand T andrevolve the flier on. the fixed tube, and have one end. of the tube.fitted with a plug in which a small hole is pierced for each of thecentral threads. This. will prevent the lapping thread from twisting thecentral threads, and will cause the lapping/ thread to be laid on thecentral thread in a more satisfactory manner.

It may be desirable to make the small pulley drive the flier by aclutch-connection.

The drawings show only one spindle and one flier; but it is understoodthat one pattern-chain and one pair of clutches may'operate a number offliers and spindles; and, also, one or'more threads may be used to formthe central thread; and the machine may befltte'd with a suitabletraverse motion; and the twisted and spotted yarn may be wound on ashuttle-bobbin placed on the spindle M 5 and the yarn may be used asfilling direct from the machine, or the yarn may be wound on largespools, as desired.

Other modifications may be suggested by which our invention may beoperated, but in principle it remains the same.

We are aware that it is not new to lap a thread around a central threadin different quantities at different points. This we do not claim; but

We claim-- A pattern-chain or a pattern device which shall be capable ofadjustment and alteration, in combination with the operating-clutches GG G and a mechanism for drawing off and Winding a central thread orthreads, and devices for lapping a second thread thereon in differentquantities at different points, as shown and described.

JOHN AROHlBALD. H. HOLCROFT.

Witnesses A. P. RUTHERFORD, HENRY PoLsz.

